Just wanted to say thanks again for all the great replies - I knew I could count on you all for some great advice, some humor and some well placed sarcasm!

Like I said, I'm going to keep my mouth shut and just have fun fishing with a good friend. I'm going to keep the gift certificate idea in mind though, because you can never have too much knowledge - I feel fairly comfortable in my cast, but I know that I can still learn a LOT. I guess I could always just take the class with him, then I'd be acknowledging that we could both use a little help... Not to mention that it would be a lot of fun!